Home / 1,527.37-2,291.13-431.64

Finding the Fourth Proportional to 1,527.37, 2,291.13 and 431.64

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Solution

The fourth proportional to 1,527.37, 2,291.13 and 431.64 is: 647.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,527.37 : 2,291.13 = 431.64 : x
  2. Step 2: Convert to fraction form
    1,527.37/2,291.13 = 431.64/x
  3. Step 3: Cross multiply
    1,527.37x = 2,291.13 × 431.64
  4. Step 4: Simplify right side
    1,527.37x = 988,943.35
  5. Step 5: Solve for x
    x = 988,943.35/1,527.37
  6. Step 6: Final answer
    x = 647.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.